724140617 has 2 divisors, whose sum is σ = 724140618. Its totient is φ = 724140616.

The previous prime is 724140611. The next prime is 724140631. The reversal of 724140617 is 716041427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616479241 + 107661376 = 24829^2 + 10376^2 .

It is a cyclic number.

It is not a de Polignac number, because 724140617 - 2⁴ = 724140601 is a prime.

It is not a weakly prime, because it can be changed into another prime (724140611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362070308 + 362070309.

It is an arithmetic number, because the mean of its divisors is an integer number (362070309).

Almost surely, 2^724140617 is an apocalyptic number.

It is an amenable number.

724140617 is a deficient number, since it is larger than the sum of its proper divisors (1).

724140617 is an equidigital number, since it uses as much as digits as its factorization.

724140617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 724140617 is about 26909.8609621083. The cubic root of 724140617 is about 897.9957940653.

The spelling of 724140617 in words is "seven hundred twenty-four million, one hundred forty thousand, six hundred seventeen".